在管理员模式下运行eclipse为我解决了这个问题。您可以通过[右键单击]->在安装目录下以管理员身份运行eclipse.exe。

我在win7机器的工作环境中具有限制性权限。我还删除了.lock和.log文件，但这并没有帮助。它也可以是所有这些因素的结合。

进入任务管理器(在任务栏中单击右键)，选择进程菜单栏，选择eclipse.exe，单击EndProcess

下面是解决这个问题的几个步骤。4步对我来说很有用。

Delete .log files along .metadata folder. Check the current user permission make sure to check the full control checkbox click apply then OK. If you run system drive defragmentation or maintenance before you run eclipse editor sometimes original file path are not in their respective path to make sure run "previous version" time before your system maintenance of your drive where the eclipse workbench or something similar to this was saved. This last option is works for me. Check the drive letter of your current drive where the code editor was saved. If something unusual e.g before your maintenance your drive letter is K then after defragment or maintenance. The drive letter is now L hence you should change the drive letter to its original one that is K. to do this click the ff: Open control panel System & security Administrative tools Computer management Disk management in disk mngt choose the Drive example L then right click > change drive letter & path > click remove > then ok, open it again then > click add and > choose your original drive letter for that drive then click ok. If you use your computer for a long period of time do restart first to refresh everything.

看起来你的工作空间是在Java TM中使用的，打开任务管理器并关闭eclipse.exe和Java TM进程。

我不知道出了什么问题，但我通过直接在c驱动器(c:\dev)中创建一个目录来解决，而不是从我的主文件夹(c:\users\me\dev)。但我不用多想。在我的情况下，它是新的eclipse解压缩实例。我无法在eclipse文件夹中看到.matadata文件夹。感谢上帝的恩典，我解决了。

有时，如果你在Windows上，你可能看不到所有的进程——或者在任务管理器中看不到罪魁祸首进程。我必须点击“显示所有用户的进程”，我必须杀死这个java.exe，以便回到我的工作空间。